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Subsequent commits will expand the `struct odb_source` to become a generic interface for accessing an object database source. As part of these refactorings we'll add a set of function pointers that will significantly expand the structure overall. Prepare for this by splitting out the `struct odb_source` into a separate header. This keeps the high-level object database interface detached from the low-level object database sources. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
#ifndef ODB_SOURCE_H
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#define ODB_SOURCE_H
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/*
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* The source is the part of the object database that stores the actual
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* objects. It thus encapsulates the logic to read and write the specific
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* on-disk format. An object database can have multiple sources:
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*
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* - The primary source, which is typically located in "$GIT_DIR/objects".
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* This is where new objects are usually written to.
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*
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* - Alternate sources, which are configured via "objects/info/alternates" or
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* via the GIT_ALTERNATE_OBJECT_DIRECTORIES environment variable. These
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* alternate sources are only used to read objects.
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*/
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struct odb_source {
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struct odb_source *next;
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/* Object database that owns this object source. */
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struct object_database *odb;
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/* Private state for loose objects. */
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struct odb_source_loose *loose;
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/* Should only be accessed directly by packfile.c and midx.c. */
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struct packfile_store *packfiles;
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/*
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* Figure out whether this is the local source of the owning
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* repository, which would typically be its ".git/objects" directory.
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* This local object directory is usually where objects would be
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* written to.
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*/
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bool local;
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/*
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* This object store is ephemeral, so there is no need to fsync.
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*/
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int will_destroy;
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/*
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* Path to the source. If this is a relative path, it is relative to
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* the current working directory.
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*/
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char *path;
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};
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/*
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* Allocate and initialize a new source for the given object database located
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* at `path`. `local` indicates whether or not the source is the local and thus
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* primary object source of the object database.
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*/
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struct odb_source *odb_source_new(struct object_database *odb,
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const char *path,
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bool local);
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/* Free the object database source, releasing all associated resources. */
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void odb_source_free(struct odb_source *source);
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#endif
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